still for framstellning of a (c). 716 - c? 7128) - alkenyl bernstenssyranhydrid - condensation product of a comprehensive omsettning (c? 716 - c? 7128) - olefin with maleic anhydride under the requirement 1 of the patent 367 180.

摘要

1411376 Detergents containing alkenyl succinic acid salts or esters UNILEVER Ltd 13 Nov 1972 [18 Nov 1971 15 Aug 1972] 53578/71 Heading C5D [Also in Division C2] Surface active agents or detergency builders comprise alkenyl succinic anhydride reaction products, acids, or mono- or di-salts or esters thereof, prepared by reacting a vinylidene olefine or rearranged vinylidene olefine (8-28 C) with maleic anhydride (see Division C2). The compounds may be the sole agents or in admixture with conventional agents in liquids, powders or bars. Examples describe the use of disodium alkenyl succinates prepared from mixed C 16 , C 18 and C 20 vinylidene olefines and C 14 and C 16 vinylidene olefines reacted with maleic anhydride.